--- a/dmd/TupleDeclaration.d	Tue Aug 31 02:12:15 2010 +0200
+++ b/dmd/TupleDeclaration.d	Tue Aug 31 03:53:49 2010 +0200
@@ -69,22 +69,28 @@
 			Arguments args = new Arguments();
 			args.setDim(objects.dim);
 			OutBuffer buf = new OutBuffer();
+			bool hasdeco = 1;
 			for (size_t i = 0; i < objects.dim; i++)
 			{   Type t = cast(Type)objects.data[i];
 
 				//printf("type = %s\n", t->toChars());
-				static if (0) {
+static if (false)
+{
 					buf.printf("_%s_%d", ident.toChars(), i);
 					char *name = cast(char *)buf.extractData();
 					Identifier id = new Identifier(name, TOKidentifier);
 					Argument arg = new Argument(STCin, t, id, null);
-				} else {
+} else {
 					Argument arg = new Argument(STCundefined, t, null, null);
-				}
+}
 				args.data[i] = cast(void *)arg;
+				if (!t.deco)
+					hasdeco = false;
 			}
 
 			tupletype = new TypeTuple(args);
+			if (hasdeco)
+				return tupletype.semantic(0, null);
 		}
 
 		return tupletype;